December weather forecastCalaca, Indonesia
December
Weather in December
The first month of the winter, December, is still a warm month in Calaca, Indonesia, with an average temperature fluctuating between 24.5°C (76.1°F) and 28.8°C (83.8°F).Temperature
Entering December, the average high-temperature is recorded at a still warm 28.8°C (83.8°F), exhibiting a minimal shift from November's 29.6°C (85.3°F). Calaca experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 24.5°C (76.1°F) throughout December.Heat index
Throughout December, the heat index is evaluated at a very hot 35°C (95°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in December in Calaca is 82%.Rainfall
In Calaca, Indonesia, during December, the rain falls for 25.8 days and regularly aggregates up to 121mm (4.76") of precipitation. Throughout the year, there are 292.1 rainfall days, and 1415mm (55.71") of precipitation is accumulated.Daylight
The month with the shortest days in Calaca is December, with an average of 12h and 0min of daylight.On the first day of December, sunrise is at 05:28 and sunset at 17:30. On the last day of the month, sunrise is at 05:42 and sunset at 17:44 WITA.
Sunshine
The average sunshine in December in Calaca is 8.1h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Calaca are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 7 during December translates into the following guidance:
Guard against overexposure. Protection from sun-induced harm is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Calaca, Indonesia
- Average high temperature in December: 28.8°C
The warmest month (with the highest average high temperature) is October (30.5°C).
The month with the lowest average high temperature is February (28.1°C).
- Average low temperature in December: 24.5°C
The month with the highest average low temperature is May (24.8°C).
The coldest month (with the lowest average low temperature) is March (23.8°C).
Average pressure in December
Calaca, Indonesia
- Average pressure in December: 1008.5mbar
The month with the highest atmospheric pressure is September (1010.1mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in December
Calaca, Indonesia
- Average wind speed in December: 6.8km/h
The windiest month (with the highest average wind speed) is February (8.2km/h).
The calmest month (with the lowest average wind speed) is May (5.3km/h).
Average humidity in December
Calaca, Indonesia
- Average humidity in December: 82%
The months with the highest relative humidity are January, February and March (83%).
The month with the lowest relative humidity is September (76%).
Average rainfall in December
Calaca, Indonesia
- Average rainfall in December: 121mm
The wettest month (with the highest rainfall) is June (161mm).
The driest month (with the least rainfall) is September (69mm).
Average rainfall days in December
Calaca, Indonesia
- Average rainfall days in December: 25.8 days
The month with the highest number of rainy days is May (28.3 days).
The month with the least rainy days is September (19.5 days).
Average daylight in December /
Average sunshine in December
Calaca, Indonesia
- Average daylight in December: 12h and 0min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in December: 8h and 6min
The month with the most sunshine is September (Average sunshine: 9h and 18min).
The months with the least sunshine are January and February (Average sunshine: 7h and 36min).
Average sunshine days in December
Calaca, Indonesia
- Average sunshine days in December: 2.8 days
The month with the most sunshine days is August (8.6 days).
The month with the least sunshine days is November (1 days).
Average UV index in December
Calaca, Indonesia
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Calaca, Indonesia
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Calaca, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
